Sql.php 9.7 KB

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  1. <?php namespace Dever\String;
  2. class Sql
  3. {
  4. public static function setColOrder($order)
  5. {
  6. $this->colOrder = $order;
  7. }
  8. public static function desc($table)
  9. {
  10. return 'DESC ' . $table;
  11. }
  12. public static function truncate($table)
  13. {
  14. return 'TRUNCATE TABLE `' . $table . '`';
  15. }
  16. public static function opt($table)
  17. {
  18. return 'OPTIMIZE TABLE `' . $table . '`';
  19. }
  20. public static function explain($sql)
  21. {
  22. return 'EXPLAIN ' . $sql;
  23. }
  24. public static function showIndex($table)
  25. {
  26. return 'SHOW INDEX FROM ' . $table;
  27. }
  28. public static function create($config)
  29. {
  30. $sql = 'DROP TABLE IF EXISTS `' . $config['table'] . '`;CREATE TABLE IF NOT EXISTS `' . $config['table'] . '`(';
  31. $struct = array('id' => array('name' => 'ID', 'type' => 'int(11)'),'cdate' => array('name' => 'cdate', 'type' => 'int(11)'));
  32. $struct = array_merge($struct, $config['struct']);
  33. foreach ($struct as $k => $v) {
  34. $sql .= self::createField($k, $v) . ',';
  35. }
  36. $sql = rtrim($sql, ',') . ')';
  37. if (isset($config['auto'])) {
  38. $sql .= ' AUTO_INCREMENT = ' . $config['auto'];
  39. }
  40. if (isset($config['type'])) {
  41. $sql .= ' ENGINE = ' . $config['type'] . ';';
  42. }
  43. return $sql . ' COMMENT="'.$config['name'].'"';
  44. }
  45. public static function createField($name, $set)
  46. {
  47. $field = '`' . $name . '` ' . strtoupper($set['type']);
  48. if ($name == 'id') {
  49. $field .= 'UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL';
  50. } elseif (isset($set['default']) && $set['default']) {
  51. $field .= ' NOT NULL DEFAULT "' . $set['default'] . '"';
  52. } elseif (strpos($set['type'], 'int') !== false || strpos($set['type'], 'float') !== false || strpos($set['type'], 'decimal') !== false || strpos($set['type'], 'double') !== false) {
  53. $field .= ' NOT NULL DEFAULT 0';
  54. } else {
  55. $field .= ' NULL';
  56. }
  57. if (isset($set['name'])) {
  58. $field .= ' COMMENT \'' . $set['name'] . '\'';
  59. }
  60. return $field;
  61. }
  62. public static function alter($table, $struct, $data)
  63. {
  64. $sql = array();
  65. $alter = 'ALTER TABLE `' . $table . '` ';
  66. foreach ($data as $v) {
  67. $field = $v['Field'];
  68. if ($field != 'id') {
  69. $set = $struct[$field] ?? false;
  70. if ($set) {
  71. if ($set['type'] != $v['Type'] || (isset($set['default']) && $set['default'] != $v['Default'])) {
  72. $sql[] = $alter . ' CHANGE `' . $field . '` `' . $field . '` ' . self::createField($field, $set);
  73. } else {
  74. unset($struct[$field]);
  75. }
  76. } else {
  77. $sql[] = $alter . ' DROP `' . $field . '`';
  78. }
  79. }
  80. }
  81. if ($struct) {
  82. foreach ($struct as $k => $v) {
  83. $sql[] = $alter . ' ADD ' . self::createField($k, $v);
  84. }
  85. }
  86. return implode(';', $sql);
  87. }
  88. public static function index($table, $index, $del = array())
  89. {
  90. $sql = array();
  91. $alter = 'ALTER TABLE `' . $table . '` ';
  92. foreach ($del as $v) {
  93. if ($v['Key_name'] != 'PRIMARY') {
  94. $sql[] = $alter . ' DROP INDEX ' . $v['Key_name'];
  95. }
  96. }
  97. if ($index) {
  98. foreach ($index as $k => $v) {
  99. $t = 'INDEX';
  100. if (strpos($v, '.')) {
  101. list($v, $t) = explode('.', $v);
  102. }
  103. $sql[] = $alter . ' ADD ' . strtoupper($t) . ' ' . $k . ' (' . $v . ')';
  104. }
  105. }
  106. return implode(';', $sql);
  107. }
  108. public static function partition($table, $partition, $index)
  109. {
  110. $state = true;
  111. foreach ($index as $k => $v) {
  112. if ($v['Key_name'] == 'PRIMARY' && $v['Column_name'] == 'cdate') {
  113. $state = false;
  114. }
  115. }
  116. $sql = '';
  117. if ($state) {
  118. return 'ALTER TABLE `' . $table . '` DROP PRIMARY KEY, ADD PRIMARY KEY (`id`, `cdate`) USING BTREE;ALTER TABLE `' . $table . '` PARTITION BY RANGE (cdate) (PARTITION p'.$partition.' VALUES LESS THAN ('.$partition.'));';
  119. } else {
  120. return 'ALTER TABLE `' . $table . '` ADD PARTITION (PARTITION p'.$partition.' VALUES LESS THAN ('.$partition.'));';
  121. }
  122. }
  123. public static function select($table, $param, &$bind, $set = array(), $field = array())
  124. {
  125. $col = '*';
  126. $rule = '';
  127. if (isset($set['col'])) {
  128. $col = $set['col'];
  129. }
  130. if (isset($set['join'])) {
  131. $temp = explode('_', $table);
  132. $prefix = $temp[0] . '_' . $temp[1] . '_';
  133. $table .= ' AS ' . $temp[2];
  134. foreach ($set['join'] as $k => $v) {
  135. $table .= ' ' . $v['type'] . ' ' . $prefix . $v['table'] . ' AS ' . $v['table'] . ' ON ' . $v['on'];
  136. }
  137. }
  138. if (isset($set['group'])) {
  139. $rule .= ' GROUP BY ' . $set['group'];
  140. }
  141. if (isset($set['order'])) {
  142. $rule .= ' ORDER BY ' . $set['order'];
  143. }
  144. if (isset($set['limit'])) {
  145. if (is_array($set['limit'])) {
  146. $table .= ' inner join (select id from ' . $table . self::where($param, $bind, $field) . $rule . ' limit ' . $set['limit'][0].','.$set['limit'][1].') as t on '.$table.'.id=t.id';
  147. $rule = '';
  148. $param = false;
  149. } else {
  150. $rule .= ' LIMIT ' . $set['limit'];
  151. }
  152. }
  153. return 'SELECT ' . $col . ' FROM ' . $table . self::where($param, $bind, $field) . $rule;
  154. }
  155. public static function where($param, &$bind, $field = array())
  156. {
  157. if ($param) {
  158. $first = $second = '';
  159. if (is_array($param)) {
  160. $i = 0;
  161. foreach ($param as $k => $v) {
  162. if (strpos($k, '#')) {
  163. $k = trim($k, '#');
  164. }
  165. if ($k == 'or' || $k == 'and') {
  166. $first_link = $second_link = '';
  167. foreach ($v as $k1 => $v1) {
  168. if (is_array($v1)) {
  169. self::field($second_link, $bind, $i, $k1, $v1[0], $v1[1], $field);
  170. } else {
  171. self::field($first_link, $bind, $i, $k1, '=', $v1, $field);
  172. }
  173. }
  174. $first_link = ltrim($first_link, ' and ');
  175. $second .= ' ' . $k . ' (' . $first_link . $second_link . ')';
  176. } else {
  177. if (is_array($v)) {
  178. self::field($second, $bind, $i, $k, $v[0], $v[1], $field);
  179. } else {
  180. self::field($first, $bind, $i, $k, '=', $v, $field);
  181. }
  182. }
  183. }
  184. return ' WHERE ' . ltrim($first . $second, ' and ');
  185. } elseif (is_numeric($param)) {
  186. return ' WHERE id = ' . $param;
  187. } else {
  188. return ' WHERE ' . $param;
  189. }
  190. } else {
  191. return '';
  192. }
  193. }
  194. private static function field(&$s, &$b, &$i, $k, $e, $v, $f)
  195. {
  196. if ($f && empty($f[$k]) && strpos('id,cdate', $k) === false) {
  197. return;
  198. }
  199. $s .= ' and ';
  200. $p = ':'.$k.$i;
  201. $k = '`'.$k.'`';
  202. if (strpos($e,'in') !== false) {
  203. $s .= $k.$e.'('.$p.')';
  204. } elseif ($e == 'like') {
  205. $s .= 'instr('.$k.','.$p.')'.' > 0';
  206. } elseif ($e == 'group') {
  207. $v = ','.$v.',';
  208. $s .= 'instr(concat(",",'.$k.',","),'.$p.')' . ' > 0';
  209. } elseif ($e == 'between') {
  210. $b[$p.'_e'] = $v[1];
  211. $v = $v[0];
  212. $s .= $k.' between '.$p.' and '.$p.'_e';
  213. } else {
  214. $s .= $k.$e.$p;
  215. }
  216. $b[$p] = $v;
  217. $i++;
  218. }
  219. public static function insert($table, $data, &$bind, $field)
  220. {
  221. $sql = 'INSERT INTO `' . $table . '` SET ';#IGNORE
  222. foreach ($data as $k => $v) {
  223. if ($field && empty($field[$k]) && strpos('id,cdate', $k) === false) {
  224. continue;
  225. }
  226. $sql .= '`' . $k . '`=:' . $k . ',';
  227. $bind[':'.$k] = $v;
  228. }
  229. $sql = rtrim($sql, ',');
  230. return $sql;
  231. }
  232. public static function update($table, $param, $data, &$bind, $field)
  233. {
  234. $i = 0;
  235. $sql = 'UPDATE `' . $table . '` SET ';
  236. foreach ($data as $k => $v) {
  237. if ($field && empty($field[$k]) && strpos('id,cdate', $k) === false) {
  238. continue;
  239. }
  240. $a = '';
  241. if (is_array($v)) {
  242. $a = $v[1];
  243. $v = $v[0];
  244. }
  245. $sql .= '`' . $k . '`=`' . $k . '`' . $a . ':' . $k . ',';
  246. $bind[':'.$k] = $v;
  247. }
  248. return rtrim($sql, ',') . self::where($param, $bind, $field);
  249. }
  250. public static function delete($table, $param, &$bind, $field)
  251. {
  252. return 'DELETE FROM `' . $table . '`' . self::where($param, $bind, $field);
  253. }
  254. public static function inserts($table, $param)
  255. {
  256. $num = $param['num'] ?? 1;
  257. $sql = 'INSERT INTO `' . $table . '` (' . $param['field'] . ') VALUES ';
  258. foreach ($param['value'] as $k => $v) {
  259. for ($i = 1; $i <= $num; $i++) {
  260. $insert[] = '(' . $v . ')';
  261. }
  262. }
  263. $sql .= implode(',', $insert) . ',';
  264. return rtrim($sql, ',');
  265. }
  266. }